CN103486021B - A kind of sea water pump self lubricating system and self-lubricating method - Google Patents
A kind of sea water pump self lubricating system and self-lubricating method Download PDFInfo
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- CN103486021B CN103486021B CN201310455949.6A CN201310455949A CN103486021B CN 103486021 B CN103486021 B CN 103486021B CN 201310455949 A CN201310455949 A CN 201310455949A CN 103486021 B CN103486021 B CN 103486021B
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- 239000013535 sea water Substances 0.000 title claims abstract description 27
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 112
- 238000005461 lubrication Methods 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses a kind of sea water pump self lubricating system and self-lubricating method.Described sea water pump self lubricating system, comprises main line, external water pipe road and two backwash pipelines; Described main line is equipped with in turn the first gate valve, booster water pump, the second gate valve, 2/2-way valve, pressure transmitter and flow switch, described external pipeline is equipped with 2/2-way valve; One end of one in described two backwash pipelines is connected with drain pipe, and the other end is connected with a two-position three-way valve; One end of another root is communicated with main line, and the other end is connected with another two-position three-way valve.The present invention takes from body seawater from pump group discharge opening and does lubrication water source, and water source is by after metre filter, and major part is used for pump group lubrication water, and fraction serves as backwash water source, fresh-water-saving resource, energy-conserving and environment-protective, ensures the stable operation of sea water pump long-term safety.
Description
Technical field
The present invention relates to and belong to fluid machinery technical field, be specially a kind of sea water pump self lubricating system and self-lubricating method.
Background technique
, as shown in Figure 4, there is following drawback in existing sea water pump lubrication water system:
1. form of fetching water is in the majority with external lubrication water, causes precious freshwater resources waste, has run counter to country delivers energy-saving and emission-reduction call in " 12 " period.
2. adopt the filter of selflubricating form in the majority with y-type filter 15, y-type filter 15 ubiquity pollutant holding capability is little, be subject to dirt blocking, cleaning is complicated and the defects such as pump group work can be affected in cleaning process.
3. the backwash mode of existing filter is the backwash of external source press water, need whole process to provide clean external source press water, cause the wasting of resources, and if external source press water goes wrong (as unstable in the water yield, water source is contaminated), then filter backwash can lose efficacy, and produces potential safety hazard.
Summary of the invention
For the problems referred to above of prior art, the present invention aims to provide a kind of sea water pump self lubricating system and self-lubricating method, this self lubricating system is taken from body seawater from pump group discharge opening and is done lubrication water source, water source is by after metre filter, major part is used for pump group lubrication water, and fraction serves as backwash water source, fresh-water-saving resource, energy-conserving and environment-protective, ensure the stable operation of sea water pump long-term safety.
To achieve these goals, the technical solution adopted in the present invention is: a kind of sea water pump self lubricating system, comprise one end to connect pump and to spue the main line that the mouth of a river, the other end be connected with pump group water intake, the external water pipe road that one end is connected with main line, the other end is communicated with outer water receiving; Its structural feature is, also comprises two backwash pipelines; The first gate valve, booster water pump, the second gate valve, 2/2-way valve, pressure transmitter and flow switch described main line be equipped with in turn, wherein be connected by three main line arms in parallel between booster water pump with the first gate valve, in three main line arms, a main line arm is equipped with differential pressure switch, another two main line arms are equipped with filter, all two-position three-way valve are housed at the water intake of each filter and water outlet; 2/2-way valve is equipped with on described external water pipe road; One end of a backwash pipeline in described two backwash pipelines is connected with drain pipe, and the other end is connected with two groups of two-position three-way valves near the first gate valve; One end of another root backwash pipeline is communicated with the main line between booster water pump and the second gate valve, and the other end is connected with two groups of two-position three-way valves near booster water pump.
Be below the technological scheme of further improvement of the present invention:
In order to control each valve more easily, described 2/2-way valve and two-position three-way valve are solenoid valve.
In order to improve filtering effect, described filter is laminated filter.
Present invention also offers one utilizes above-mentioned sea water pump self lubricating system to carry out self-lubricating method, and it comprises the steps:
1), before pump group starts, open the 2/2-way valve on external water pipe road, close the 2/2-way valve on main line, external water pipe road provides pump group to lubricate water;
2), start pump group, when pump group operates steadily, close the 2/2-way valve on external water pipe road, open the 2/2-way valve on main line, then open booster water pump, the press water of pump group discharge opening enters main line as pump group lubrication water;
3), from the diversion of pump group discharge opening, the first gate valve and the second gate valve is kept to open, four groups of two-position three-way valves before and after two set filters are opened, self water of pump group imports in two set filters in parallel respectively, clean water after filtration flows to booster water pump again, is delivered to the parts that pump group needs water lubrication and cooling after booster water pump supercharging.
When the water intake of the first set filter in two set filters and the pressure reduction of water outlet reach setting value, close two two-position three-way valves of the first set filter intake-outlet, now, two backwash pipelines are all communicated with the first set filter, clean water in main line 10 after supercharging guides the filter core of filter into by backwash pipeline piece, then is discharged by drain pipe by sewage by another root backwash pipeline.
Above structure, take from body seawater from pump group discharge opening and do lubrication water source, suspended matter and the laminated filter that impurity rejection effect is good, dismounting is easy to maintenance, overall plastic material has the advantages such as outstanding resist chemical, the backwash mode of filter is endogenous backwash: water source is by after metre filter, clean water major part again after the supercharging of lubrication water pump, supercharging is used for pump group lubrication water, and fraction serves as backwash water source.
Compared with prior art, the invention has the beneficial effects as follows:
1, utilize self water backwash, save external water resources, backwash water, by the supercharging of lubrication water pump, has good backwash effect;
2, laminated filter filtration pollutant holding capability blocks greatly, not easily, and manually unpicks and washes conveniently;
3, flowing through the water source of booster water pump, is the clean water after filtering, and the long-term stability being beneficial to booster water pump is run;
4, through the filtration lubrication water of booster water pump, due to increasing of pressure, can stop that medium seawater is reverse to be entered and pollute guide bearing, thus ensure the clean of guide bearing, extend the working life of guide bearing, and then sea water pump long-time running is stablized;
5, backwash mode is by the switch of differential pressure switch Controlling solenoid valve, two set filters automatically successively carry out backwash process (first group of backwash is complete carry out normal filtration work after, second group is just carried out backwash process), namely have a set filter to provide the enough lubrication of clean water for sea water pump and the backwash of another set filter all the time, automaticity is high and safe and reliable.
Below in conjunction with drawings and Examples, the present invention is further elaborated.
Accompanying drawing explanation
Fig. 1 is schematic diagram and the normal filtration state logic figure of an embodiment of the present invention.
Fig. 2 is the system logic figure of the first set filter backwash working state of the present invention.
Fig. 3 is the system logic figure of the second set filter backwash working state of the present invention.
Fig. 4 is existing sea water pump lubrication water system logic diagram.
In the drawings
1-first gate valve; 2-two-bit triplet solenoid valve; 3-laminated filter;
4-differential pressure switch; 5-booster water pump; 6-2/2-way solenoid valve (often opening);
7-2/2-way solenoid valve (normally closed); 8-pressure transmitter; 9-flow switch;
10-main line; 11-backwash pipeline; 12-external water pipe road; 13-the 3rd gate valve;
14-second gate valve; 15-Y type filter.
Embodiment
A kind of sea water pump self lubricating system, as shown in Figure 1, this system comprises gate valve 1, two-bit triplet solenoid valve 2, laminated filter 3, differential pressure switch 4, booster water pump 5,2/2-way solenoid valve 6,7, pressure transmitter 8, flow switch 9 and each pipeline;
A kind of sea water pump selflubricating integrated device embodiment, this device is divided into three pipelines: main line 10, backwash pipeline 11; External water pipe road 12;
As shown in Figure 1, the connection of each pipeline and each parts following (be backward sequentially with water (flow) direction):
Main line is connected with pump group discharge opening, above connects gate valve; Main line after gate valve is equipped with the laminated filter of two groups of parallel connections, often organizes before and after laminated filter and pipeline is equipped with a two-bit triplet solenoid valve; What differential pressure switch was in parallel with two groups of laminated filters is connected on main line; Booster water pump is connected on the main line after two groups of laminated filters, connects with two groups of laminated filters; After booster water pump, main line connects with sea water pump after successively connecting gate valve, 2/2-way solenoid valve, pressure transmitter, flow switch; Main line between backwash pipeline first paragraph connection booster water pump and the second gate valve 14 and the two-bit triplet solenoid valve of two groups of laminated filter left ends, second segment is connected with the two-bit triplet solenoid valve of two groups of laminated filter right-hand members as drain pipe; External water pipe road connects with the main line between 2/2-way solenoid valve and pressure transmitter, above connects a 2/2-way solenoid valve.
Self lubricating system of the present invention is utilized to comprise the steps: the method that sea water pump carries out selflubricating
1, before pump group starts, open the 2/2-way solenoid valve on external water pipe road, close the 2/2-way solenoid valve on main line, now external water pipe road provides pump group to lubricate water lubricating pilot bearings, to ensure the clean boot of pump;
2, pump group starts and reaches operating point to pump and after operating steadily, close the 2/2-way solenoid valve on external water pipe road, and open the 2/2-way solenoid valve on main line, open booster water pump, now discharge opening press water enters main line, provides pump group to lubricate water;
3, from the diversion of pump group discharge opening, 2 gate valves are in opening state, four groups of two-bit triplet solenoid valve open and-shut modes before and after two groups of laminated filters as shown in Figure 1, self water of pump group imports two groups of laminated filters in parallel respectively, clean water after filtration flows to booster water pump again, is transported to the parts that pump group needs water lubrication and cooling after booster water pump supercharging;
4, during device normal filtration, pressure transmitter, flow switch, differential pressure switch are monitored in real time to the hydraulic parameters in pipeline, and with long-range output alarm function, urgency linkage is shut down;
5, the water inlet and outlet pressure reduction before and after filter reaches setting value---be namely low to moderate certain value, by the backwash mode of automatic opening filter when laminated filter is excessively clogged the hydraulic pressure after making filtration.Work-based logic such as former and later two two-bit triplet solenoid valves of Fig. 2 and Fig. 3: the first laminated filter will cut out in mode as shown in Figure 2, namely backwash pipeline and first group of laminated filter are connected, clean water after supercharging guides filter element of lamination type filter into by backwash pipeline, and the sewage rinsed out is discharged by drain pipe again; When backwash first group of laminated filter, another group laminated filter in working order in, water source there will not be cutout, can ensure completing of the normal lubrication of sea water pump and cooling and backwash first group of laminated filter work; After first laminated filter backwash is clean, the mode opening and closing as shown in Fig. 3 of first group of former and later two two-bit triplet filter of laminated filter, carry out normal filtration work, then former and later two two-bit triplet solenoid valve mode opening and closings as shown in Figure 3 of second laminated filter, namely backwash pipeline and second group of laminated filter are connected, clean water after supercharging guides filter element of lamination type filter into by backwash pipeline, and its backwash process is identical with first group of laminated filter; After second laminated filter backwash is clean, recover the normal filtration state as Fig. 1.
The content that above-described embodiment is illustrated should be understood to these embodiments only for being illustrated more clearly in the present invention, and be not used in and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
Claims (5)
1. a sea water pump self lubricating system, comprises one end and connects pump and to spue the main line (10) that the mouth of a river, the other end be connected with pump group water intake, the external water pipe road (12) that one end is connected with main line (10), the other end is communicated with outer water receiving; It is characterized in that, also comprise two backwash pipelines (11); The first gate valve (1), booster water pump (5), the second gate valve (15), 2/2-way valve (6), pressure transmitter (8) and flow switch (9) described main line (10) be equipped with in turn, wherein be connected by three main line arms in parallel between booster water pump (5) with the first gate valve (1), in three main line arms, differential pressure switch (4) a main line arm is equipped with, another two main line arms are equipped with filter (3), at the water intake of each filter (3) and water outlet, two-position three-way valve (2) are all housed; Described external water pipe road (12) is equipped with 2/2-way valve (7); One end of a backwash pipeline (11) in described two backwash pipelines (11) is connected with drain pipe, and the other end is connected with two groups of two-position three-way valves (2) near the first gate valve (1); One end of another root backwash pipeline (11) is communicated with the main line (10) be positioned between booster water pump (5) and the second gate valve (14), and the other end is connected with two groups of two-position three-way valves (2) near booster water pump (5).
2. sea water pump self lubricating system according to claim 1, is characterized in that, the 2/2-way valve (6) on main line, the 2/2-way valve (7) on external water pipe road (12), two-position three-way valve (2) are solenoid valve.
3. sea water pump self lubricating system according to claim 1, is characterized in that, described filter (3) is laminated filter.
4. utilize the described sea water pump self lubricating system of one of claim 1-3 to carry out a self-lubricating method, it is characterized in that, comprise the steps:
1), before pump group starts, open the 2/2-way valve (7) on external water pipe road (12), close the 2/2-way valve (6) on main line (10), external water pipe road (12) provide pump group to lubricate water;
2), pump group is started, when pump group operates steadily, close the 2/2-way valve (7) on external water pipe road (12), open the 2/2-way valve (6) on main line (10), then open booster water pump (5), the press water of pump group discharge opening enters main line (10) as pump group lubrication water;
3), from the diversion of pump group discharge opening, the first gate valve (1) and the second gate valve (14) is kept to open, four groups of two-position three-way valves (2) before and after two set filters (3) are opened, self water of pump group imports in two set filters (3) in parallel respectively, clean water after filtration flows to booster water pump (5) again, after booster water pump (5) supercharging, be delivered to the parts that pump group needs water lubrication and cooling.
5. self-lubricating method according to claim 4, it is characterized in that, when in two set filters (3), the water intake of the first set filter and the pressure reduction of water outlet reach setting value, close two two-position three-way valves (2) of the first set filter intake-outlet, now, two backwash pipelines (11) are all communicated with the first set filter, clean water after main line (10) interior supercharging guides the filter core of filter (3) into by backwash pipeline (11), then is discharged by drain pipe by sewage by another root backwash pipeline (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310455949.6A CN103486021B (en) | 2013-09-30 | 2013-09-30 | A kind of sea water pump self lubricating system and self-lubricating method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310455949.6A CN103486021B (en) | 2013-09-30 | 2013-09-30 | A kind of sea water pump self lubricating system and self-lubricating method |
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| CN105649973B (en) * | 2014-11-28 | 2018-01-05 | 中国石油天然气股份有限公司 | Lubricating coupler and its application method for reciprocating plunger pump |
| CN114321683B (en) * | 2021-11-27 | 2023-09-01 | 宜昌测试技术研究所 | Sea water pump lubrication oil way system capable of injecting oil discharge outside cabin |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS58144678A (en) * | 1982-02-23 | 1983-08-29 | Mitsubishi Heavy Ind Ltd | Pump receiving external pressure |
| JPH07323895A (en) * | 1994-05-30 | 1995-12-12 | Mitsubishi Heavy Ind Ltd | Pump lubricating oil device for water jet ship |
| JP3129639B2 (en) * | 1995-09-29 | 2001-01-31 | 日本碍子株式会社 | Seawater circulation pump shaft lubrication water shell removal device |
| EP1485181B1 (en) * | 2002-02-21 | 2007-09-12 | Gordon Construction, Inc. | Self-cleaning fluid filter system |
| CN102606452A (en) * | 2012-03-15 | 2012-07-25 | 中国核电工程有限公司 | Pre-lubricating system of compressor |
| CN102764748B (en) * | 2012-07-27 | 2015-01-07 | 中国一冶集团有限公司 | Method for washing hydraulic lubricating system |
| CN203532243U (en) * | 2013-09-30 | 2014-04-09 | 湖南耐普泵业有限公司 | Self-lubricating system of sea water pump |
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Denomination of invention: A kind of sea water pump self lubricating system and self-lubricating method Effective date of registration: 20161227 Granted publication date: 20150916 Pledgee: Changsha Bank city branch of Limited by Share Ltd Pledgor: HUNAN NEPTUNE PUMP CO., LTD. Registration number: 2016430000067 |
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Date of cancellation: 20190322 Granted publication date: 20150916 Pledgee: Changsha Bank city branch of Limited by Share Ltd Pledgor: HUNAN NEPTUNE PUMP CO., LTD. Registration number: 2016430000067 |
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Denomination of invention: Self-lubricating system and method of sea water pump Effective date of registration: 20190415 Granted publication date: 20150916 Pledgee: Changsha Bank city branch of Limited by Share Ltd Pledgor: HUNAN NEPTUNE PUMP CO., LTD. Registration number: 2019430000032 |
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Date of cancellation: 20220607 Granted publication date: 20150916 Pledgee: Changsha Bank city branch of Limited by Share Ltd. Pledgor: HUNAN NEPTUNE PUMP Co.,Ltd. Registration number: 2019430000032 |